10552521 has 8 divisors (see below), whose sum is σ = 16080064. Its totient is φ = 6030000.

The previous prime is 10552519. The next prime is 10552523. The reversal of 10552521 is 12525501.

It is an interprime number because it is at equal distance from previous prime (10552519) and next prime (10552523).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10552521 - 2¹ = 10552519 is a prime.

It is a super-2 number, since 2×10552521² = 222711398910882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 502501 = 10552521 / (1 + 0 + 5 + 5 + 2 + 5 + 2 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10552523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251230 + ... + 251271.

It is an arithmetic number, because the mean of its divisors is an integer number (2010008).

Almost surely, 2^10552521 is an apocalyptic number.

It is an amenable number.

10552521 is a deficient number, since it is larger than the sum of its proper divisors (5527543).

10552521 is an equidigital number, since it uses as much as digits as its factorization.

10552521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502511.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 10552521 is about 3248.4644064542. The cubic root of 10552521 is about 219.3404558395.

The spelling of 10552521 in words is "ten million, five hundred fifty-two thousand, five hundred twenty-one".